/*!
 * FUTUREAISPHERE Brand Components
 * Wiederverwendbare Komponenten-Styles, die auf brand-tokens.css aufbauen.
 *
 * Ladereihenfolge in HTML:
 *   1. brand-tokens.css     (Variablen)
 *   2. main.min.css         (Tailwind v4 Purge-Build)
 *   3. brand-components.css (Komponenten-Klassen, die Tokens nutzen)
 *
 * Alle Styles hier waren vorher inline in mehreren HTML-Dateien dupliziert.
 * Siehe FUTURE_BRAND_GOVERNANCE.md fuer die Architektur-Entscheidung.
 */

/* ============================================ */
/* Accessibility Helpers                          */
/* ============================================ */
/* Screen-reader only — visuell verborgen, fuer assistive tech sichtbar.
   Wird u.a. von der Live-Status-Region des Kontaktformulars genutzt. */
.sr-only {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Sichtbarer Fokus-Ring fuer Tastaturnutzer (ergaenzt focus-visible des Browsers) */
:focus-visible {
    outline: 2px solid var(--brand-primary, #A3E635);
    outline-offset: 2px;
}

/* Form-Field Error State: rote Border + Hinweistext sichtbar */
[aria-invalid="true"] {
    border-color: #DC2626 !important;
}

/* ============================================ */
/* Base Body (wird in HTMLs nicht mehr inline gesetzt) */
/* ============================================ */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.theme-light {
    background-color: var(--surface-base);
    color: var(--text-body);
    font-family: var(--font-sans);
    margin: 0;
}

body.theme-dark {
    background-color: var(--surface-dark);
    color: #E2E8F0;
    font-family: var(--font-sans);
    margin: 0;
}

/* ============================================ */
/* Brand CTA Button                              */
/* ============================================ */
.btn-cta {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-strong) 100%);
    color: var(--brand-ink-950);
    transition: transform var(--duration-base) var(--ease-spring),
                box-shadow var(--duration-base) var(--ease-standard);
    text-transform: none !important;
    letter-spacing: 0.01em;
    font-weight: var(--weight-bold);
}
.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}
.btn-cta:active {
    transform: translateY(0) scale(0.98);
}

/* Loading-State fuer Submit-Buttons waehrend fetch() */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}
.btn-loading::after {
    content: '';
    position: absolute;
    inset: 0;
    margin: auto;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(2, 6, 23, 0.15);
    border-top-color: var(--brand-ink-950);
    border-radius: 50%;
    animation: fais-spin 0.6s linear infinite;
}
@keyframes fais-spin {
    to { transform: rotate(360deg); }
}

/* ============================================ */
/* Gradient Logo Text (FUTUREAISPHERE Wordmark)  */
/* ============================================ */
.text-gradient-logo {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-deep) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================ */
/* Shadow Utility                                */
/* ============================================ */
.shadow-glow {
    box-shadow: var(--shadow-glow);
}

/* ============================================ */
/* Navigation Scrolled State (Light)             */
/* ============================================ */
.nav-scrolled {
    background: var(--surface-elevated);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-sm);
}
.nav-scrolled a,
.nav-scrolled span,
.nav-scrolled button {
    color: var(--text-strong);
}
.nav-scrolled .text-brand-primary {
    color: var(--brand-primary-strong);
}

/* Smart Sticky Nav: scroll-down hides, scroll-up shows */
.nav-hidden {
    transform: translateY(-100%);
}

/* ============================================ */
/* Focus Visible (Accessibility)                 */
/* ============================================ */
:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 3px;
}

/* ============================================ */
/* Form Validation States                        */
/* ============================================ */
.form-submitted input:invalid,
.form-submitted textarea:invalid,
.form-submitted select:invalid {
    border-color: var(--state-danger) !important;
}

/* Minimum Touch Targets (WCAG 2.5.5) */
button,
[role="button"],
a.btn-cta {
    min-height: 44px;
    min-width: 44px;
}

/* Select Options Color Scheme */
select option {
    background: var(--surface-base);
    color: var(--text-strong);
}

/* ============================================ */
/* Native Details/Summary FAQ Styling            */
/* ============================================ */
details summary::-webkit-details-marker {
    display: none;
}
details summary {
    list-style: none;
    cursor: pointer;
}
details[open] summary {
    color: var(--brand-primary-strong);
}

/* ============================================ */
/* Logo Entrance Animation                       */
/* ============================================ */
@keyframes fais-logo-in {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}
.logo-animate {
    animation: fais-logo-in var(--duration-slow) var(--ease-spring) forwards;
}

/* ============================================ */
/* Scroll Reveal (nur fuer index.html wirksam)   */
/* ============================================ */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s var(--ease-emphatic),
                transform 0.7s var(--ease-emphatic);
}
.js-loaded .reveal {
    opacity: 0;
    transform: translateY(24px);
}
.reveal.visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Staggered Items (Philosophie-Liste etc.) */
.stagger-item {
    opacity: 1;
}
.js-loaded .stagger-item {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger-item.visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* ============================================ */
/* Card Components                                */
/* ============================================ */
.card-light {
    background: var(--surface-base);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
    transition: box-shadow var(--duration-base) var(--ease-emphatic),
                border-color var(--duration-base) var(--ease-standard),
                transform var(--duration-base) var(--ease-emphatic);
}
.card-light:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-primary-border);
    transform: translateY(-4px);
}

.kpi-card {
    background: var(--surface-base);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-xs);
    transition: transform var(--duration-base) var(--ease-spring),
                box-shadow var(--duration-base) var(--ease-standard),
                border-color var(--duration-base) var(--ease-standard);
}
.kpi-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-primary-border);
}
.tabular-nums {
    font-variant-numeric: tabular-nums;
}

/* Glass (Dark-Sektion Karten auf dunklem Grund) */
.glass-method {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all var(--duration-base) var(--ease-emphatic);
}
.glass-method:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--brand-primary-border);
    box-shadow: 0 0 30px rgba(163, 230, 53, 0.1);
    transform: translateY(-4px);
}

/* ============================================ */
/* Utility Layout                                 */
/* ============================================ */
.section-spacer {
    padding-top: 6rem;
    padding-bottom: 6rem;
}
@media (min-width: 64rem) {
    .section-spacer {
        padding-top: 8rem;
        padding-bottom: 8rem;
    }
}

section[id] {
    scroll-margin-top: 80px;
}

/* ============================================ */
/* Reading Progress & Back-to-Top                */
/* ============================================ */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-primary-deep));
    z-index: var(--z-overlay);
    width: 0;
    pointer-events: none;
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: var(--z-sticky);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--duration-base) var(--ease-standard),
                transform var(--duration-base) var(--ease-standard);
    pointer-events: none;
}
.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* ============================================ */
/* Range Input (ROI Slider)                      */
/* ============================================ */
input[type="range"] {
    -webkit-appearance: none;
    background: var(--border-subtle);
    height: 6px;
    border-radius: 3px;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 22px;
    width: 22px;
    border-radius: 50%;
    background: var(--brand-primary);
    cursor: pointer;
    box-shadow: var(--shadow-glow);
    transition: transform var(--duration-fast) ease;
}
input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}
input[type="range"]::-moz-range-thumb {
    height: 22px;
    width: 22px;
    border-radius: 50%;
    background: var(--brand-primary);
    cursor: pointer;
    border: none;
}

/* ============================================ */
/* Fade-In-Up Animation (Methodik-Steps)         */
/* ============================================ */
@keyframes fais-fade-in-up {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.js-loaded [data-method-step] {
    opacity: 0;
}

/* ============================================ */
/* Micro-Motion (Click-Feedback)                 */
/* ============================================ */
a:active,
button:active {
    transform: scale(0.98);
}

/* ============================================ */
/* 4K / Ultra-wide Typography Refinement         */
/* ============================================ */
@media (min-width: 2560px) {
    body { font-size: 18px; }
    .container { max-width: 1400px; }
}

/* ================================================================ */
/* PREMIUM LIGHT UI — Phase 7                                        */
/* ================================================================ */

/* ============================================ */
/* Bento Grid System                             */
/* ============================================ */
/* Mobile-first: Single column, dann abgestufte Bento-Layouts */
.bento-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

/* Bento-Variante: Services (2x2 asymmetrisch auf Desktop) */
.bento-services {
    grid-template-columns: 1fr;
}
@media (min-width: 48rem) {
    .bento-services {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: minmax(260px, auto);
    }
    /* Erste Karte als "featured" gewichtet: 2-Spalten auf md, 1 auf lg */
    .bento-services > .bento-feature {
        grid-column: span 2;
    }
}
@media (min-width: 64rem) {
    .bento-services {
        grid-template-columns: repeat(12, 1fr);
    }
    .bento-services > .bento-item {
        grid-column: span 6;
    }
    .bento-services > .bento-feature {
        grid-column: span 12;
    }
    .bento-services > .bento-wide {
        grid-column: span 8;
    }
    .bento-services > .bento-narrow {
        grid-column: span 4;
    }
}

/* Bento-Variante: Trust (3 KPI-Kacheln + optional Feature) */
.bento-trust {
    grid-template-columns: 1fr;
}
@media (min-width: 48rem) {
    .bento-trust {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================ */
/* Premium Card (Evolution von .card-light)      */
/* ============================================ */
.premium-card {
    background: var(--surface-base);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-xs);
    transition: box-shadow var(--duration-base) var(--ease-emphatic),
                border-color var(--duration-base) var(--ease-standard),
                transform var(--duration-base) var(--ease-emphatic);
    position: relative;
    overflow: hidden;
}
.premium-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, transparent, var(--brand-primary-soft), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--duration-base) var(--ease-standard);
    pointer-events: none;
}
.premium-card:hover {
    border-color: var(--brand-primary-border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.premium-card:hover::before {
    opacity: 1;
}

/* Hero-Kachel (groesser, mehr Gewicht) */
.premium-card-feature {
    background: linear-gradient(135deg, var(--surface-base) 0%, var(--surface-subtle) 100%);
    padding: var(--space-xl);
}

/* ============================================ */
/* Icon System (Lucide-Style)                    */
/* ============================================ */
/* Einheitliche SVG-Icon-Regeln: stroke-width 1.5, rounded caps */
.icon {
    width: 1.5rem;
    height: 1.5rem;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}
.icon-sm { width: 1rem; height: 1rem; }
.icon-md { width: 1.5rem; height: 1.5rem; }
.icon-lg { width: 2rem; height: 2rem; }
.icon-xl { width: 2.5rem; height: 2.5rem; }

/* Icon-Container (Card-Header mit Icon) */
.icon-tile {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-md);
    background: var(--surface-subtle);
    color: var(--text-muted);
    transition: background-color var(--duration-base) var(--ease-standard),
                color var(--duration-base) var(--ease-standard),
                transform var(--duration-base) var(--ease-emphatic);
}
.group:hover .icon-tile {
    background: var(--brand-primary-soft);
    color: var(--brand-primary-strong);
    transform: scale(1.05);
}

/* ============================================ */
/* Premium CTA Evolution                          */
/* ============================================ */
.btn-cta-premium {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-strong) 100%);
    color: var(--brand-ink-950);
    font-weight: var(--weight-bold);
    padding: 1rem 2.5rem;
    border-radius: var(--radius-pill);
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
    transition: transform var(--duration-base) var(--ease-emphatic),
                box-shadow var(--duration-base) var(--ease-emphatic);
    box-shadow: 0 2px 8px rgba(163, 230, 53, 0.15),
                inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-cta-premium::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.18), transparent 60%);
    opacity: 0;
    transition: opacity var(--duration-base) var(--ease-standard);
}
.btn-cta-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(163, 230, 53, 0.25),
                0 4px 12px rgba(163, 230, 53, 0.15),
                inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.btn-cta-premium:hover::before {
    opacity: 1;
}
.btn-cta-premium:active {
    transform: translateY(0) scale(0.98);
}

/* Ghost Button (Sekundaer) */
.btn-ghost {
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--text-strong);
    padding: 1rem 2.5rem;
    border-radius: var(--radius-pill);
    font-weight: var(--weight-bold);
    letter-spacing: 0.01em;
    transition: border-color var(--duration-base) var(--ease-standard),
                color var(--duration-base) var(--ease-standard),
                background-color var(--duration-base) var(--ease-standard);
}
.btn-ghost:hover {
    border-color: var(--brand-primary-strong);
    color: var(--brand-primary-strong);
    background: var(--brand-primary-soft);
}

/* ============================================ */
/* Premium Headline Hierarchy                    */
/* ============================================ */
.h-hero {
    font-size: var(--step-5);
    font-weight: var(--weight-extrabold);
    letter-spacing: var(--tracking-tightest);
    line-height: var(--line-tight);
    color: var(--text-strong);
}
.h-section {
    font-size: var(--step-3);
    font-weight: var(--weight-extrabold);
    letter-spacing: var(--tracking-tight);
    line-height: var(--line-snug);
    color: var(--text-strong);
}
.h-card {
    font-size: var(--step-1);
    font-weight: var(--weight-bold);
    letter-spacing: var(--tracking-normal);
    line-height: var(--line-snug);
    color: var(--text-strong);
}
.eyebrow {
    display: inline-block;
    font-size: var(--step--1);
    font-weight: var(--weight-bold);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--brand-primary-strong);
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-pill);
    background: var(--brand-primary-soft);
    border: 1px solid var(--brand-primary-border);
    margin-bottom: var(--space-sm);
}

/* ============================================ */
/* Section Intro Blocks (einheitliche Hierarchie) */
/* ============================================ */
.section-intro {
    text-align: center;
    max-width: 48rem;
    margin-inline: auto;
    margin-bottom: var(--space-xl);
}
.section-intro p {
    color: var(--text-muted);
    font-size: var(--step-1);
    line-height: var(--line-relaxed);
    margin-top: var(--space-sm);
}

/* ============================================ */
/* Divider / Separator                            */
/* ============================================ */
.fais-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-subtle), transparent);
    border: 0;
}

/* ============================================ */
/* Legal Page Harmonisation                      */
/* ============================================ */
/* Hebt datenschutz, impressum, danke auf Premium-Niveau */
.legal-wrapper {
    background: var(--surface-subtle);
    min-height: calc(100vh - 200px);
}
.legal-content {
    background: var(--surface-base);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    max-width: 48rem;
    margin-inline: auto;
}
.legal-content h1 {
    font-size: var(--step-4);
    font-weight: var(--weight-extrabold);
    letter-spacing: var(--tracking-tight);
    color: var(--text-strong);
    margin-bottom: var(--space-sm);
}
.legal-content h2 {
    font-size: var(--step-2);
    font-weight: var(--weight-bold);
    color: var(--text-strong);
    margin-top: var(--space-lg);
    margin-bottom: var(--space-xs);
}
.legal-content p,
.legal-content li {
    color: var(--text-body);
    line-height: var(--line-relaxed);
    font-size: var(--step-0);
}
.legal-content a {
    color: var(--brand-primary-strong);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.legal-content a:hover {
    color: var(--brand-primary-deep);
}
.legal-content ul {
    padding-left: 1.25rem;
    margin-block: var(--space-xs);
}
.legal-content strong {
    color: var(--text-strong);
}

/* ============================================ */
/* REDUCED MOTION — Accessibility Override       */
/* ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    /* Ensure JS-gated reveals are immediately visible */
    .js-loaded .reveal,
    .js-loaded .stagger-item,
    .js-loaded [data-method-step] {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
    }
    .premium-card:hover,
    .card-light:hover,
    .kpi-card:hover,
    .btn-cta:hover,
    .btn-cta-premium:hover {
        transform: none;
    }
}